AN 739: Altera 1588 System Solution

Download PDF
ID 683410
Date 1/28/2016
Public
Document Table of Contents
Document Table of Contents x
1. Altera 1588 System Solution
1. Altera 1588 System Solution x
1.1. Altera 1588 System Level Overview 1.2. Precision Time Protocol (PTP) Concept in A 1588 System 1.3. Reference Design Walk-through 1.4. System Architecture 1.5. Altera 1588 System Solution Document Revision History
1.2. Precision Time Protocol (PTP) Concept in A 1588 System x
1.2.1. Understanding the Different PTP Clocks 1.2.2. Precision Time Protocol (PTP) Synchronization Process 1.2.3. Functional Flow For A 1588 Ordinary Clock Master/Slave Mode System 1.2.4. Functional Flow For A 1588 Transparent Clock Master/Slave Mode System 1.2.5. Functional Flow for A 1588 Boundary Clock Mode System 1.2.6. Timestamp Packet Functional Flow in Linux Driver
1.3. Reference Design Walk-through x
1.3.1. System Requirements 1.3.2. Reference Design User Guide
1.3.2. Reference Design User Guide x
1.3.2.1. Hardware Setup 1.3.2.2. Executing The Reference Design 1.3.2.3. Replacing RBF File
1.3.2.1. Hardware Setup x
1.3.2.1.1. Loading the Boot Image into SD Card 1.3.2.1.2. Setting Up Development Kit 1.3.2.1.3. Booting Up The Reference Design
1.4. System Architecture x
1.4.1. System Modules 1.4.2. Clocking and Reset Scheme 1.4.3. System Parameters 1.4.4. System Register Map 1.4.5. Interface Signals
1.4.1. System Modules x
1.4.1.1. MAC 1.4.1.2. Time of Day (ToD) 1.4.1.3. Packet Parser 1.4.1.4. The Central Processing Unit (CPU) 1.4.1.5. FIFO
1.4.4. System Register Map x
1.4.4.1. MAC Registers 1.4.4.2. Transceiver Registers 1.4.4.3. PTP Control Registers 1.4.4.4. 1588 ToD Clock Registers
1.4.5. Interface Signals x
1.4.5.1. Clock and Reset Signals 1.4.5.2. PHY Interface Signals 1.4.5.3. HPS Signals
1. Altera 1588 System Solution

1.4.1.2. Time of Day (ToD)

Altera provides a Time of Day Clock (ToD) module to ease user's implementation when using Altera Ethernet MAC-based 1588 system.

The ToD module is a counter responsible for generating the current real time of day locally. A processor with a Timing Servo Control Software updates the ToD counter, typically via fine-grain adjustments in terms of phase and frequency corrections through relevant registers. The ToD can provide both a 64-bit time useful for the correction field used in a transparent clock (TC) and a full 96-bit time useful for ordinary clock (OC) and boundary clock (BC).

You can instantiate a master ToD module to time-stamp the transmitted and received packets. One ToD module can be shared across multiple MACs. You must enable the 64-bit timestamp when using TC, otherwise use 96-bit timestamp.You may use Altera Ethernet IEEE 1588 TOD Synchronizer to synchronize multiple slave ToDs to a single master ToD.

Level Two Title